Fireproof column and column-cap.



No. 813,183, PATENTED FEB. 20, 1906.

J. J. TRBSIDDBR.

FIRE'PROOF COLUMN AND COLUMN GAP. APPLIUATION vFILED 033T 23.1995.

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UNITED STATES PALTENT OFFICE.

JOHN J. TRESIDDER, OF NEW YORK, N. Y., ASSIGNOR TOAM-ERIOAN COLUMN COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

FIREPROOF COLUMN AND COLUMN-CAP To all whom it may concern:

Be it known thatI, JOHN J. TRESIDDER, a citizen of the United States, residing in New York, in the borough of Brooklyn and State of New York, have invented certain new and useful Improvements in Fireproof Columns and Column-Caps, of which the following is a specification.

This invention relates to an improved column and column-cap for fire roof-buildings, said column being compose of metal and fireproof material and assembled on the place of use for direct application; and for this purpose the invention consists of a fireproof column and cap which comprises a base, an interior hollow or solid core or pillar provided with a flattened u per end, a column-cap provided with a soc et having an interior recess for interlocking with the flattened end of the core or illar to be passed through, the lower end of-tl i e socket being tapering, an exterior shell or acket fitted over the lower exterior end socket of the column-cap, and a fireproof filling for the socket of the columncap and the interior of the core and outer shell.

The invention consists, further, of certain additional features of construction, which will be fully described, and finally pointed o t in the claims.

In the accompanying drawings, Figure 1 represents a'vertical central'section of my improved column and cap. Fig.2 a side elevation, partly in vertical section,-at right angles to the section shown in Fig. 1 and Fig. 3 is a horizontal section on 'line 3 3, Fig. 2.

Similar letters ofreference indicate corresponding parts in the different figures of the rawmgs.

Referring to the drawings,-a represents an interior hollow or solid core or (pillar which is made of the required height an which is flattened at its upper end, so as to form an oval or elongated portion a, as shownclearly in Figs. 1 and 3. The flattened upper end a of the interior core or pillar a is inserted into .the interior of the socket b of a column-cap b, which socket has a contraction b for receiving the flattened end a of the core or pillar a. The lower part of the socket b is diminished in thickness, so as to taper toward its end, as shown in Fig. 1. When the flattened end of the core or pillar a is inserted Specification of Letters Patent.

Application filed October 23, 1905. Serial No. 283,914.

into'the contracted portion 72 of the socket b and then turned on its axis, so as to interlock with the contracted portion of the socket, it forms a lock with the same. A fireproof filling, such as concrete, is then inserted into the space between the socket bof the column-cap b andthe end of the core or pillar and into the space in the hollow core and an exterior jacket or shell d, the core and jacket being placed in vertical position for this purpose. The socket of the column-cap b is provided with an exterior shoulder 6 adjacent to the strengthening-ribs b of the ca the shoulder serving-as an abutment for t e upper end of the exterior jacket or shell (1, which 1s made of cast-steel or other suitable metal, like the core or illar. core a and the ower part of t e socket b of the column-cap b are rovided with alined Openings 0 0 into whic the fireproof filling,

such as concrete,- enters when the. same. is

poured into the space at the interior of the core or pillar and in'the s ace between the socket and exterior shell, t e concrete forming an anchor or look for connecting the parts together, while binding the remaining portions. of the column firmlytogether and imparting great strengthand superior fireproof quality to the same. Thecolumn-cap' bis provided with a socket g for supporting the column next above and with flanges for making connection with the I-beams, which are su ported on the beam-seats of the cap I; in t e usual manner. The lower ends of the core and jacket are supported in the socket of a base e and 'locked thereto by inserting and turning the flattened lower end of the core or pillar in the contracted inner portion of the base in the same manner as thelnterlocking of the upper end of the core or pillar with the socket the column-cap is accomplished. The base may, however, be attached by'bolts e The up er end of the or in-any other manner to the lower ends of thecore and jacket. i

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A fireproof column, consisting of an interior core or pillar provided with a flattened upper end, a column-cap provided with a socket having an interior contracted portion corresponding in shape to the flattened end,

an. exterior shell or jacket placed over the lower part of the socket of the column-cap, means for connecting the socket, core and jacket, and a fireproof filling for the interior of the core, socket and exterior jacket or shell.

2. A fireproof column, consisting of an interior core or pillar provided with a flattened upper end, a cap provided with a socket tanering toward lts lower end and provided with an interior contracted portion corresponding with the shape of the flattened end, an exterior jacket or shell placed on the socket ofthe column-cap, the interior core and socket being provided with alined openings, and a fireproof filling in the interior core and between the socket and exterior jacket or. shell, said fillin entering said openings and forming an anc or between the core and socket.

In testimony that claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

JOHN J. TRESIDDER.

Witnesses:

PAUL GoEPEL, H. J. SUHRBIER 

